20000230309 has 2 divisors, whose sum is σ = 20000230310. Its totient is φ = 20000230308.

The previous prime is 20000230307. The next prime is 20000230333. The reversal of 20000230309 is 90303200002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14388722209 + 5611508100 = 119953^2 + 74910^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000230309 - 2¹ = 20000230307 is a prime.

Together with 20000230307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000230307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000115154 + 10000115155.

It is an arithmetic number, because the mean of its divisors is an integer number (10000115155).

Almost surely, 2^20000230309 is an apocalyptic number.

It is an amenable number.

20000230309 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000230309 is an equidigital number, since it uses as much as digits as its factorization.

20000230309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The spelling of 20000230309 in words is "twenty billion, two hundred thirty thousand, three hundred nine".